Description

High-precision addition, equivalent to the A+B problem. Do not consider negative numbers.

Input Format

Input consists of two lines. $a,b \leq 10^{500}$.

Output Format

Output a single line representing the value of $a+b$.

1
1

2

1001
9099

10100

Hint

For 20% of the testdata, $0\le a,b \le10^9$. For 40% of the testdata, $0\le a,b \le10^{18}$.

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